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Articles 271 - 300 of 442
Full-Text Articles in Ethics and Political Philosophy
Chickening Out Of Change: Will Knowing More About Thinking Chickens Change Public Perceptions?, Ewan Bottomley, Steve Loughnan
Chickening Out Of Change: Will Knowing More About Thinking Chickens Change Public Perceptions?, Ewan Bottomley, Steve Loughnan
Animal Sentience
This commentary examines the next step in Marino’s target article – changing people’s attitudes and beliefs about chickens. The scientific case seems clear: chickens are far more complex, psychologically and socially, than originally thought. Marino suggests we use this information to make people feel uncomfortable about their dietary choices in the hope of changing them. We review the psychological literature, examining how people maintain meat consumption despite the clash with their moral beliefs (the “meat paradox”). This work highlights the important gap between what science knows about animals and what people think about animals.
Evolutionary Continuity, Anne Benvenuti
Evolutionary Continuity, Anne Benvenuti
Animal Sentience
The principle of evolutionary continuity states that all animal capacities and behaviors exist — with variations in degree — in continuity with other species. Rather than assuming discontinuity, we should ask why any behavior observed in humans would not be found in at least some other sentient animals under similar conditions. In the case of suicide, the more pertinent issue might be the ethical one: our human responsibility for creating conditions under which other animals might deliberately seek to end their own lives.
Non-Human Animal Suicide Could Be Tested, David Lester
Non-Human Animal Suicide Could Be Tested, David Lester
Animal Sentience
Schaefer (1967) showed that mice can discriminate live from dead mice and lethal from nonlethal environments, and that they avoid a lethal environment; but the experiment lacked some controls. This might be a way to test whether mice would ever choose a lethal environment. Humans may also choose a potentially lethal environment unconsciously.
Understanding Animal Suicide And Death Can Lead To Better End-Of-Life Care, Jessica Pierce
Understanding Animal Suicide And Death Can Lead To Better End-Of-Life Care, Jessica Pierce
Animal Sentience
Peña-Guzmán’s target article on animal suicide will help inform end-of-life care for animals by emphasizing the need for a broad research focus on animal thanatology. Greater scientific understanding of the continuum of death-related awareness, experiences, and behaviors will help us improve veterinary care for animals at the end of life.
Complicated Grief, Teya Brooks Pribac
Complicated Grief, Teya Brooks Pribac
Animal Sentience
My commentary discusses complicated grief and the ensuing sense of helplessness that may lead to suicide. I close with a story about a pygmy pig.
Can Nonhuman Animals Commit Suicide?, David M. Peña-Guzmán
Can Nonhuman Animals Commit Suicide?, David M. Peña-Guzmán
Animal Sentience
Many people believe that only humans have the cognitive and behavioral capacities needed for suicidal behavior, such as reflexive subjectivity, free will, intentionality, or awareness of death. Three counterarguments — based on (i) negative emotions and psychopathologies among nonhuman animals, (ii) the nature of self-destructive behavior, and (iii) the problem of model fidelity in suicide research — suggest that self-destructive and self-injurious behaviors among human and nonhuman animals vary along a continuum.
Tribute To Jaak Panksepp, Jonathan Balcombe
Getting To The Other Side, Debra Merskin
Getting To The Other Side, Debra Merskin
Animal Sentience
Marino’s comprehensive, detailed, and timely review provides clear evidence of the sentience of chickens and strong support for those wishing to challenge their exclusion from even the limited protections currently accorded to animals grown for food.
Sentience Does Not Require “Higher” Cognition, Giorgio Vallortigara
Sentience Does Not Require “Higher” Cognition, Giorgio Vallortigara
Animal Sentience
I agree with Marino (2017a,b) that the cognitive capacities of chickens are likely to be the same as those of many others vertebrates. Also, data collected in the young of this precocial species provide rich information about how much cognition can be pre-wired and predisposed in the brain. However, evidence of advanced cognition — in chickens or any other organism — says little about sentience (i.e., feeling). We do not deny sentience in human beings who, because of cognitive deficits, would be incapable of exhibiting some of the cognitive feats of chickens. Moreover, complex problem solving, such as transitive inference, …
Misperceiving And Underestimating The Ubiquitous Chicken, Carrie P. Freeman
Misperceiving And Underestimating The Ubiquitous Chicken, Carrie P. Freeman
Animal Sentience
Marino has provided an accurate and nuanced view about chickens’ complex capabilities as sentient individuals. I explore the implications of these findings for scholars as well as for activists in the protection of farmed animals.
Is Psychological Science Committing “Suicide” By Linguistic Muddling?, Roger K. Thomas
Is Psychological Science Committing “Suicide” By Linguistic Muddling?, Roger K. Thomas
Animal Sentience
Beginning mainly with the “cognitive revolution” in psychology in the latter half of the 20th century, psychological science has been committing “suicide” slowly via linguistic muddling. Peña-Guzmán’s target article is but one of thousands of cuts contributing to this death by “suicide.” Having said that, given the current state of affairs in animal cognition research, there is much to commend in Peña-Guzmán’s article. I leave that to others, however. This commentary explains how the suicide by muddling of psychological science is happening in general, with the understanding that it applies also to Peña-Guzmán’s target article.
On Assisted Suicide, Clark Glymour
On Assisted Suicide, Clark Glymour
Animal Sentience
What would be the moral implications of the capacity for suicide in nonhuman animals? Humans can be helped to end their lives if they no longer find them bearable. Should captive animals not be given the same possibility?
Self, Death, And Suicide: Does An Animal Know Of These?, Carolyn A. Ristau
Self, Death, And Suicide: Does An Animal Know Of These?, Carolyn A. Ristau
Animal Sentience
Peña-Guzmán makes a strong case, using examples from the media and scientific literature, that many captive animals suffer severely. In examining the possibility of animal suicide, he dismisses the need for “reflective self-subjectivity” and “intent” in suicidal behavior. He claims that at least some animals understand “death,” citing examples of behavior he deems to be death “rituals.” But these can be more simply interpreted. The possibility of animal suicide remains more dubious than Peña-Guzmán suggests.
Changes In Behavior And Emotion Under Chicken Domestication, Martin Johnsson
Changes In Behavior And Emotion Under Chicken Domestication, Martin Johnsson
Animal Sentience
Marino’s target article provides an overview of chickens’ cognition, emotion, and personality, with the aim of changing how people view chickens. In this commentary, I will agree that chickens deserve better than their reputation, but contend with a statement about the lack of behavioral change under chicken domestication.
Experiment Versus Analogy In The Search For Animal Sentience, Geoffrey Hall
Experiment Versus Analogy In The Search For Animal Sentience, Geoffrey Hall
Animal Sentience
Deciding between rival accounts of an instance of an animal’s behavior can frequently be achieved by experimental tests of different predictions made by the alternatives. When, however, one (or both) of the alternatives is expressed in terms of the mental state of the animal, an experimental test to distinguish them can be hard to find. Although it is unsatisfactory in many ways, it may be necessary to fall back on argument from analogy with human behavior and experience.
Cognitive Continuity In Cognitive Dissonance, David R. Brodbeck, Madeleine I. R. Brodbeck
Cognitive Continuity In Cognitive Dissonance, David R. Brodbeck, Madeleine I. R. Brodbeck
Animal Sentience
Zentall’s (2016) model of cognitive dissonance is compatible with cognitive continuity between humans and nonhumans. It may help explain cognitive dissonance-like behavior in many species, including humans. It is also consistent with Tinbergen’s (1963) ‘four whys’ in ethological explanation.
Dissonance Reduction In Nonhuman Animals: Implications For Cognitive Dissonance Theory, Cindy Harmon-Jones, Nick Haslam, Brock Bastian
Dissonance Reduction In Nonhuman Animals: Implications For Cognitive Dissonance Theory, Cindy Harmon-Jones, Nick Haslam, Brock Bastian
Animal Sentience
We review the evidence for dissonance reduction in nonhuman animals and examine the alternative explanations for these effects. If nonhuman animals engage in dissonance reduction, this supports the original theory as proposed by Festinger (1957) over the revisions to the theory that focused on the self-concept. Evidence of animal sentience, including dissonance reduction, may be a source of cognitive dissonance.
Clarifying Concepts In Cognitive Dissonance Theory, Eddie Harmon-Jones
Clarifying Concepts In Cognitive Dissonance Theory, Eddie Harmon-Jones
Animal Sentience
This commentary on Zentall’s target article focuses primarily on clarifying some postulates and variables in cognitive dissonance theory. I discuss the adaptive motivational functions of dissonance arousal and dissonance reduction, and attempt to clarify some past dissonance experiments and to tease apart a dissonance theory and contrast explanation of effort-justification-type effects. The evidence and arguments reviewed here support the explanatory power of cognitive dissonance theory in a wide variety of circumstances in human and nonhuman animals, but they depend on first defining concepts such as “cognitions” quite broadly, as Festinger did when he originally proposed the theory.
The Potential For Sentience In Fishes, Jay R. Stauffer Jr.
The Potential For Sentience In Fishes, Jay R. Stauffer Jr.
Animal Sentience
Balcombe’s book is filled with information on the biology, behavior, and life history of fishes. I do not agree with all his premises. I am still somewhat perplexed about the discussion of whether fish feel pain; I am not sure whether the distinction between nociception and pain makes any difference. Overall, however, his treatment of the principles of both natural and sexual selection is comprehensive and accurate, and has greatly increased my knowledge and awareness of the biology, ethology, and potential for sentience in fishes. In summary, this work has exposed me to new ideas about how to examine fishes …
Shoring Up The Precautionary Bar, Jon Mallatt
Shoring Up The Precautionary Bar, Jon Mallatt
Animal Sentience
I offer four ways to reinforce Birch’s precautionary principle so it can be used effectively and practically in deciding which animals to cover by legislation for humane treatment: (1) add one more credible indicator of sentience to the BAR rule; (2) use phylogenetic classification, not the outdated Linnaean classification, to test which animal clades have sentience; (3) disentangle the pain of suffering from sentience; and (4) reconsider the sentient status of decapods and insects to remove potential inconsistencies in the proposed framework.
What Harmful Practices? The Material Scope Of Animal Protection Legislation, Eze Paez
What Harmful Practices? The Material Scope Of Animal Protection Legislation, Eze Paez
Animal Sentience
Jonathan Birch proposes a criterion for the subjective scope of animal protection legislation. He says nothing about its material scope: which harmful practices it should regulate. I argue, first, that most moral views would agree that the worst forms of animal exploitation should be legally forbidden, even if there will inevitably be disagreement about some cases of animal experimentation. I also argue that, when feasible, there should be legal provisions to help wild animals.
The Value Of Bayesian Statistics For Assessing Credible Evidence Of Animal Sentience, Anil K. Seth, Zoltan Dienes
The Value Of Bayesian Statistics For Assessing Credible Evidence Of Animal Sentience, Anil K. Seth, Zoltan Dienes
Animal Sentience
Determining what constitutes practically relevant, statistically significant evidence for animal sentience, under the precautionary principle, could be enhanced through Bayesian statistics. A Bayesian approach allows the incorporation of multiple evidence sources through prior probabilities, the tracking of changing evidence across time, and a principled means of adjusting evidentiary bars via Bayes factors.
Chicken Of The Sea, Jonathan Balcombe
Chicken Of The Sea, Jonathan Balcombe
Animal Sentience
Marino summarizes research showing that chickens perform cognitively and emotionally at a higher level than previously assumed. Here, I describe capacities of teleost fishes that parallel those of chickens, including the ability to recognize human faces, perspective-taking, and referential communication. Research on chickens and on fishes reveals an emerging trend in cognitive ethology: abilities once thought limited to a scant few highly intelligent non-humans may actually occur broadly across taxa.
Anecdotes Can Be Evidence Too, Heather Browning
Anecdotes Can Be Evidence Too, Heather Browning
Animal Sentience
Birch’s criterion for the precautionary principle imposes a high evidential standard that many cases will fail to meet. Reliable, relevant anecdotal evidence suggestive of animal sentience should also to fall within the scope of the precautionary principle. This would minimize potential suffering (as happened in the case cephalopods) while further evidence is gathered.
Animal Pain And The Social Role Of Science, Leslie Irvine
Animal Pain And The Social Role Of Science, Leslie Irvine
Animal Sentience
Assuming that all animals are sentient would mean ending their use in most scientific research. This does not necessarily imply an unscientific or anti-scientific stance. Examining the social role of science reveals its considerable investment in preserving the status quo, including the continued use of animal subjects. From this perspective, the use of animal subjects is a custom that science could move beyond, rather than a methodological requirement that it must defend.
Fishes Are Gaining Academic Respect, Jonathan Balcombe
Fishes Are Gaining Academic Respect, Jonathan Balcombe
Animal Sentience
I respond to five commentaries on my 2016 book What a Fish Knows. The commentaries express more harmony than dissent about my interpretation of fishes as cognitive, aware individuals deserving better treatment by humankind.
A Risk Assessment And Phylogenetic Approach, Culum Brown
A Risk Assessment And Phylogenetic Approach, Culum Brown
Animal Sentience
The precautionary principal is often invoked when talking about the evidence of sentience in animals, largely because we can never be certain what any animal is thinking or feeling. Birch (2017) offers a preliminary framework for the use of the precautionary principal for animal sentience combining an epistemic rule with a decision rule. I extend this framework by adding an evolutionary phylogentic approach which spreads the burden of proof across broad taxonomic groups and a risk assessment component which magnifies the likely impact by the number of animals involved.
The “Precautionary Principle” – A Work In Progress, Shelley Adamo
The “Precautionary Principle” – A Work In Progress, Shelley Adamo
Animal Sentience
The target article by Birch illustrates the practical difficulties with the “Animal Sentience Precautionary Principle” (ASPP) while presenting potential solutions. However, the ASPP will be difficult to use without guidelines detailing how evidence of sentience should be assessed. Moreover, extrapolating conclusions found for a single species to all species within an Order is problematic. Finally, I recommend that Birch demonstrate his ASPP framework using a controversial test case to help show how it could be used in real-world situations.
What If All Animals Are Sentient?, Arthur S. Reber
What If All Animals Are Sentient?, Arthur S. Reber
Animal Sentience
Birch develops a useful framework for determining when the Animal Sentience Precautionary Principle (ASPP) should be invoked. He rightly notes that there is a lack of agreement among social scientists, ethicists, and legislators even about whether the precautionary principle is useful, let alone when and how it should be implemented. His proposal is to establish a kind of cognitive threshold, and only when an animal shows a sufficient level of sentience would the ASPP be appropriate. From the point of view of the Cellular Basis of Consciousness model (Reber, 2016), all animals are sentient. If correct, the problems Birch identifies …
Cognitive Dissonance Or Contrast? It Could Be Both, Thomas Zentall
Cognitive Dissonance Or Contrast? It Could Be Both, Thomas Zentall
Animal Sentience
My target article suggested that cognitive dissonance may be accounted for by a simpler mechanism: contrast. Whether contrast can explain all cognitive dissonance effects is an empirical question, but it is always useful to try to distinguish simpler mechanisms from more complex cognitive ones. The insistence that cognitive dissonance is a human-only process quite different from contrast may be a self-serving means of justifying the exploitation of animals.